You cannot just rename a .jpg to .bmp . You need specific formatting. For a Lenovo BIOS flash tool (like WinFlash or a USB BIOS update) to accept your logo, the file must be:
For a home gamer, replacing the boot logo is a fun weekend tweak. For a business, deploying a custom 120x120 Lenovo boot logo across a fleet of 500 ThinkCentres reinforces brand identity from the very first second of power-on. lenovo oem logo bmp 120x120
Why does the 120x120 spec persist? It persists because it is the "safe" baseline. If a specific BIOS version cannot handle a full-screen logo, it often falls back to a small tile format. Additionally, in certain "Dashboard" or management views within the BIOS interface, the logo is displayed as a small icon (120x120) next to system information. You cannot just rename a